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SELECCION BOMBAS DE CONDENSADO.pdf

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3: 308 C o n d e n s a t e R e c o v e r y N o n - E l e c t r i c P u m p s In the interests of development and improvement of the product, we reserve the right to change the specification. Local regulation may restrict the use of this product below the conditions quoted. Limiting conditions refer to standard connections only. How to Select & Size From the inlet pressure, back pressure and filling head conditions given below, select the pump size and check valve package which meets the capacit
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  3: 308       C    o    n      d    e    n    s    a     t    e      R    e    c    o    v    e    r    y      N    o    n   -      E      l    e    c     t    r      i    c      P    u    m    p    s  In the interests of development and improvement of the product, we reserve the right to change the specification. Local regulation may restrict the use of this product below the conditions quoted. Limiting conditions refer to standard connections only. How to Select & Size From the inlet pressure, back pressure and filling head conditions given below, selectthe pump size and check valve package which meets the capacity requirement of theapplication.Specify pump body type.Select optional extras as required.For GPM, multiply the capacities below by 0.002.For kg/h, multiply the capacities below by 0.454.For liquid specific gravities from 0.9 to 0.65, consult Spirax Sarco.* Back pressure is the lift height (H) in feet x 0.433 plus psig in return line, plusdownstream piping friction pressure drop in psig.calculated based on the maximuminstantaneous discharge rate of the respective pump selected.(See TIS Sheets) Note:To achieve rated capacity,pump must be installed with check valves supplied by SpiraxSarco.Use of a substitute check valve may effect the performance of the pump. Condensate load3000 lb/hSteam pressure available for operating pump75 psigVertical lift from pump to the return piping30 feetPressure in the return piping (piping friction negligible)25 psigFilling head on the pump available6 inches Solution: 1.Calculate H , the total lift or back pressure, against which the condensate must bepumped.= (30 x 0.433) + 25 = 38 psig2.From capacity table, with 75 psig inlet pressure and 40 psig back pressure, choose a 1-1/2 pump with stainless steel check valves, which has a capacity of 3300 lb/h. Note from capacity multiplying factor charts: A.Pump capacity if filling head is 24 in:1.3 x 3,300 = 4290 lb/hB.Pump capacity using compressed air:1.12 x 3,300 = 3696 lb/h(% back pressure is 38 ÷75 = 50%) TI- 5-202 -US 11.07 Pressure Powered PumpsSelection and Sizing Filling head 6 Filling head 24 Liquid SpecificLiquid SpecificOperatingTotal Lift Gravity 0.9 to 1.0Gravity 0.9 to 1InletBack Single pump PPEC High Capacity PPF-P PressurePressureCheck Valve SizeCheck Valve SizeCheck Valve Sizepsig psig 1 1-1/2 1 1-1/2 4 Bronze Bronze Stn.Stl.Stn.Stl.3002030040300603008030010030012030015025020250402506025080250100250120250150200152004020060200802001002001202001501501548,1001504043,8001506039,5001508034,80015010029,60015012022,200125152,1003,4002,6005,10047,800125401,9002,9002,4004,50043,200125601,7002,5002,2004,05038,100125801,5002,1001,9003,10032,5001251001,3001,6001,7002,65025,8001251151,2001,3501,3501,900100152,1003,4002,5504,95047,100100401,8002,8002,3004,00041,700100601,6002,4002,2003,25035,400100801,4001,8001,7502,50027,70075152,1003,3002,5004,80046,30075401,7002,5002,2003,30039,10075601,3002,0002,0002,45050102,0003,3002,4004,40046,10050251,7002,7002,1503,35039,70050401,4002,0001,6502,1002552,0003,4002,7005,00045,30025101,7003,0002,3503,80039,90025151,4002,6001,8003,3001021,9003,0002,2003,0001051,6002,6001,9002,600521,5002,4001,7002,400 Capacity lb/h When installed with recommended filling head above top of pump.    *   F  o  r   C  a  p  a  c   i   t  y   M  u   l   t   i  p   l  y   i  n  g   F  a  c   t  o  r  s   f  o  r   M  o   t   i  v  e   G  a  s   S  u  p  p   l   i  e  s  a  n   d   O   t   h  e  r   F   i   l   l   i  n  g   H  e  a   d  s  s  e  e   b  a  c   k  s   i   d  e  o   f   t   h   i  s  p  a  g  e .   *   *   C  a  p  a  c   i   t  y  s   h  o  w  n  w   h  e  n   f   i   t   t  e   d  w   i   t   h  s  p  e  c   i   f   i  e   d  c   h  e  c   k  v  a   l  v  e  s  o  n   l  y .  3: 309       C    o    n      d    e    n    s    a     t    e      R    e    c    o    v    e    r    y      N    o    n   -      E      l    e    c     t    r      i    c      P    u    m    p    s Pump Size – up to 3 x2 LiquidReservoir Pipe Sizelb/h3 4 6 8 10 500 or Less2'10002'15003'2'20003.5'2'1'30003'2'40004'2'1'50006'3'2'60003'2'70003'2'80004'2'90004.5'3'2'10,0005' 3'2'11,0005'3'2' Pressure Powered Pumps ™ Installation Details Spirax Sarco,Inc.,1150 Northpoint Blvd,Blythewood,SC 29016Telephone:(803) 714-2000 FAX (803) 714-2222    ©   S  p   i  r  a  x   S  a  r  c  o ,   I  n  c .   2   0   0   7 TI- 5-202 -US 11.07 Vented Receiver (Open System) To drain condensate from a single or multiple source an “open”system, a vent-ed receiver should be installed in a horizontal plane above and ahead of thepump.Sufficient receiver volume is needed above the filling head level to acceptthe condensate reaching the receiver during the pump discharge stroke.Moreimportant, the receiver must be sized to allow sufficient area for complete flashsteam separation from the condensate.The chart below shows proper ventedreceiver sizing (per criteria set forth in the A.S.H.R.A.E.Handbook) based onthe amount of flash steam present.If the receiver is sized as shown below,there will be sufficient volume for condensate storage and sufficient area forflash steam separation.The receiver can be a length of large diameter pipe or atank. RecommendedInstallation The pump is fitted with ventedreceiver or an inlet reservoir.Details of the application willdetermine whether a ventedreceiver or an inlet reservoirwill be needed to accomplishthis. Inlet Reservoir Piping (Closed System) To drain condensate from a single piece of equipment in a “closed”system, areservoir should be installed in a horizontal plane above and ahead of the pump.Sufficient reservoir volume is needed above the filling head level to accept the con-densate reaching the reservoir during the pump discharge stroke.The chart belowshows minimum reservoir sizing, based on condensate load, needed to preventequipment flooding during the pump discharge stroke.The reservoir can be alength of large diameter pipe or a tank. Pump Size – up to 3 x2 Flash SteamPipe SizeVent Lineup to –DiameterLengthDiameter75 lb/h4 36 1-1/2 150 lb/h6 36 2”300 lb/h8 36 3 600 lb/h10''36 4 900 lb/h12 36 6 1200 lb/h16 36 6 2000 lb/h20 36 8 At least 12 Sealon overflowVent to atmosphere (if fitted)PumpExhaustMotive Steamor Gas SupplyCondensateReturnLineTD 42L or 52L Trapwhen steam supply is usedPressure PoweredPumpFillingHeadFillingHeightVented Receiver (open system)        C      o      n       d      e      n      s      a       t      e       R      e       t     u      r      n 1 PPEC 10%20%30%40%50%60%70%80%90% % Backpressure Vs.Motive Pressure (BP/MP ) 1.101.131.161.201.251.301.351.401.45 Capacity Multiplying Factors 1-1/2 PPEC 10%20%30%40%50%60%70%80%90% % Backpressure Vs.Motive Pressure (BP/MP) 1.001.001.031.091.181.201.331.451.50 Capacity Multiplying Factors Capacity Multiplying FactorsFilling HeadCheck valve and piping size, pumptype Inches  mm  1 &1-1/2 PPEC 0  0 *  0.76  152  1.012  305  1.118  457  1.224  610  1.336  914  1.548  1219  60  1524  * When using a PPEC below 6 filling head, a swing check valve must always befitted to the inlet. Capacity Multiplying Factors for other Filling HeadsCapacity Multiplying Factors for Motive Gas Supply (other than steam)
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